Re: Saw a Unimat in the wild - used for model shipbuilding
...And a vintage Dremel brand jig-saw on the floor! ? Alan ? ?
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From: [email protected] < [email protected]> On Behalf Of Robert Vine Sent: Friday, May 24, 2024 11:24 PM To: [email protected]; ckinzer@... Subject: Re: [Unimat] Saw a Unimat in the wild - used for model shipbuilding ? ? After the comment that the group seemed to have gotten quiet, decided to pass this along. I was recently at the Maritime Museum in Oxnard, CA and they had a display of about a dozen ships made by one craftsman, Edward Marple, including his workbench.? It has the ship he was building when he passed away.? Notice the Unimat pointed at with my not very subtle arrow.? It has the jointer attachment.? The motorized contraption at the front right of the desk is an old dental drill.? He assembled with planks and wood dowels like the real thing.? They said up to 8.000 wood dowels in one of his models. Closer photos of the Unimat: And just a few of his many ship models they had on display. Charles E. "Chuck" Kinzer
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Re: Saw a Unimat in the wild - used for model shipbuilding
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On May 24, 2024, at 5:24?PM, Robert Vine <robert.vine36@...> wrote: ? Looks terrific. Well done.
Best regards Rob
After the comment that the group seemed to have gotten quiet, decided to pass this along.
I was recently at the Maritime Museum in Oxnard, CA and they had a display of about a dozen ships made by one craftsman, Edward Marple, including his workbench.? It has the ship he was building when he passed away.? Notice the Unimat pointed at with my not
very subtle arrow.? It has the jointer attachment.? The motorized contraption at the front right of the desk is an old dental drill.? He assembled with planks and wood dowels like the real thing.? They said up to 8.000 wood dowels in one of his models.
Closer photos of the Unimat:
And just a few of his many ship models they had on display.
Charles E. "Chuck" Kinzer
<20240510_0006 - LoRes.JPG> <20240510_0007 - LoRes.JPG> <20240510_0008 - LoRes.JPG> <20240510_0011 - LoRes.JPG> <20240510_0015 - LoRes.JPG> <20240510_0006 - LoRes.JPG>
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Re: Saw a Unimat in the wild - used for model shipbuilding
Looks terrific. Well done.
Best regards Rob
After the comment that the group seemed to have gotten quiet, decided to pass this along.
I was recently at the Maritime Museum in Oxnard, CA and they had a display of about a dozen ships made by one craftsman, Edward Marple, including his workbench.? It has the ship he was building when he passed away.? Notice the Unimat pointed at with my not
very subtle arrow.? It has the jointer attachment.? The motorized contraption at the front right of the desk is an old dental drill.? He assembled with planks and wood dowels like the real thing.? They said up to 8.000 wood dowels in one of his models.
Closer photos of the Unimat:
And just a few of his many ship models they had on display.
Charles E. "Chuck" Kinzer
|
Saw a Unimat in the wild - used for model shipbuilding
After the comment that the group seemed to have gotten quiet, decided to pass this along.
I was recently at the Maritime Museum in Oxnard, CA and they had a display of about a dozen ships made by one craftsman, Edward Marple, including his workbench.? It has the ship he was building when he passed away.? Notice the Unimat pointed at with my not
very subtle arrow.? It has the jointer attachment.? The motorized contraption at the front right of the desk is an old dental drill.? He assembled with planks and wood dowels like the real thing.? They said up to 8.000 wood dowels in one of his models.
Closer photos of the Unimat:
And just a few of his many ship models they had on display.
Charles E. "Chuck" Kinzer
|
Re: refurbishing a Unimat?
Or at least platinum. I've made a few of my own accessories due to those high costs.
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, May 24, 2024 at 12:09:30 PM CDT, Mehmood via groups.io <mehmood.naqshbandi@...> wrote:
Some of the accessories are cast in gold, going by the eBay prices their sellers are asking.
Just saying.
On 24 May 2024, at 18:02, John Dammeyer <johnd@...> wrote:
?
Mine under the chipped paint appears to be a zinc alloy.? I have ZA12 ingots I bought for making the Gingery Shaper since Zinc behaves more like cast iron than aluminum for damping vibrations. ? In case the photo doesn’t make it through it has a CSA logo on it.? Part number 14412, Model DB200 Canadian Edelstaal Inc. Toronto Ontario. <image001.jpg> ? ? Right Bill, I think many if not most DB200s were alloy. It’s the MK1 and Mk2 versions I have which all are cast iron. ? Alan Alan Ehrlich Geneva, Switzerland ? ? ? Dick, I have a Unimat here that says it's a DB 200, but is light alloy just like my SL-1000. Both machines were used when I got them, so may be Frankenmats rather that as shipped. I've not made any measurements to compare, but to the naked eye they're identical except for the label. William R. Meyers, MSgt, USAF(Ret.) Good judgement comes from experience. Experience comes from bad judgement.? Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. ? On Friday, May 24, 2024 at 08:34:59 AM CDT, OldToolmaker via groups.io <old_toolmaker@...> wrote: Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Some of the accessories are cast in gold, going by the eBay prices their sellers are asking.
Just saying.
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On 24 May 2024, at 18:02, John Dammeyer <johnd@...> wrote:
? Mine under the chipped paint appears to be a zinc alloy.? I have ZA12 ingots I bought for making the Gingery Shaper since Zinc behaves more like cast iron than aluminum for damping vibrations. ? In case the photo doesn’t make it through it has a CSA logo on it.? Part number 14412, Model DB200 Canadian Edelstaal Inc. Toronto Ontario. <image001.jpg> ? ? Right Bill, I think many if not most DB200s were alloy. It’s the MK1 and Mk2 versions I have which all are cast iron. ? Alan Alan Ehrlich Geneva, Switzerland ? ? ? Dick, I have a Unimat here that says it's a DB 200, but is light alloy just like my SL-1000. Both machines were used when I got them, so may be Frankenmats rather that as shipped. I've not made any measurements to compare, but to the naked eye they're identical except for the label. William R. Meyers, MSgt, USAF(Ret.) Good judgement comes from experience. Experience comes from bad judgement.? Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. ? On Friday, May 24, 2024 at 08:34:59 AM CDT, OldToolmaker via groups.io <old_toolmaker@...> wrote: Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Mine under the chipped paint appears to be a zinc alloy.? I have ZA12 ingots I bought for making the Gingery Shaper since Zinc behaves more like cast iron than aluminum for damping vibrations. ? In case the photo doesn’t make it through it has a CSA logo on it.? Part number 14412, Model DB200 Canadian Edelstaal Inc. Toronto Ontario. 
?
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From: [email protected] [mailto:[email protected]] On Behalf Of Alan Ehrlich
Sent: May 24, 2024 9:47 AM
To: [email protected]; wmrmeyers@...
Subject: Re: [Unimat] refurbishing a Unimat?? Right Bill, I think many if not most DB200s were alloy. It’s the MK1 and Mk2 versions I have which all are cast iron. ? Alan Alan Ehrlich Geneva, Switzerland ? ? ? Dick, I have a Unimat here that says it's a DB 200, but is light alloy just like my SL-1000. Both machines were used when I got them, so may be Frankenmats rather that as shipped. I've not made any measurements to compare, but to the naked eye they're identical except for the label. William R. Meyers, MSgt, USAF(Ret.) Good judgement comes from experience. Experience comes from bad judgement.? Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. ? On Friday, May 24, 2024 at 08:34:59 AM CDT, OldToolmaker via groups.io <old_toolmaker@...> wrote: Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Right Bill, I think many if not most DB200s were alloy. It’s the MK1 and Mk2 versions I have which all are cast iron. ? Alan Alan Ehrlich Geneva, Switzerland ? ?
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From: [email protected] < [email protected]> On Behalf Of Bill in OKC too via groups.io Sent: Friday, May 24, 2024 5:20 PM To: [email protected]Subject: Re: [Unimat] refurbishing a Unimat? ? Dick, I have a Unimat here that says it's a DB 200, but is light alloy just like my SL-1000. Both machines were used when I got them, so may be Frankenmats rather that as shipped. I've not made any measurements to compare, but to the naked eye they're identical except for the label. William R. Meyers, MSgt, USAF(Ret.) Good judgement comes from experience. Experience comes from bad judgement.? Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. ? On Friday, May 24, 2024 at 08:34:59 AM CDT, OldToolmaker via groups.io <old_toolmaker@...> wrote: Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
And in that pedantic vein, there are several different alloys called zamak with different proportions of allowing materials in them. Sitting on the shelf just out of reach are three ingots of ZAMAK 3. A quick search says that's the most commonly used alloy, though ZA2 is supposed to be harder and stronger. The ingots seem to be quite a bit heavier than my SL. But 4% aluminum is common to all the ZAMAK alloys. Though there are a bunch of zinc-aluminum alloys that aren't ZAMAC. It's another rabbit hole!
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, May 24, 2024 at 08:59:36 AM CDT, Charles Kinzer <ckinzer@...> wrote:
Just to be a bit pedantic, Zamac (and similar) are zinc alloys, not aluminum although there is some.? Roughly 96% zinc, most of the rest aluminum, and a smattering of magnesium and copper.
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 06:35:01 AM PDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Dick, I have a Unimat here that says it's a DB 200, but is light alloy just like my SL-1000. Both machines were used when I got them, so may be Frankenmats rather that as shipped. I've not made any measurements to compare, but to the naked eye they're identical except for the label.
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Friday, May 24, 2024 at 08:34:59 AM CDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
?I have cast parts in Zamak before. The best source that I found were electrical cabinet flanges for rigid conduit. A mold made from plaster of Paris that has been baked to to moisture is all that is needed. I found chrome "tree with three stainless cups in it that was intended for condiments. It was the perfect height for my propane torch. Broke up the scrap Zamak, melted, a ols sall spoon with holes drill in to skim off the dross. A few large thick steel washers on the top of the plastic mold to hold it down and pour away. Be sure to drill some vent holes along with the pour hole. I used PAM spray cooking oil as a mold release. Pour 1/2 of the plaster into a container, spray PAM on part, push 1/2 way down. let dry, spray PAM again on top of Plaster, and pour top 1/2 of plaster. Separate drill pour and vent holes, simple. ?Jeff
On Friday, May 24, 2024 at 10:48:46 AM EDT, Charles Kinzer <ckinzer@...> wrote:
Being pedantic again, magnesium is generally considered a sufficient percentage (although low) to be considered one of the primary alloy elements of Zamak (zinc, alumininm, copper, magnesium).? Iron is not generally considered one and is instead viewed as a trace as is silicon, lead, cadmium, tin, and nickel.
Zamak (or Zamac - both names are used but Zamak is more correct) is just a quality version of pot metal.? Pot metal being a zinc allow with often random and uncontrolled amounts of other things thrown in. Zamak alloys have consistent specifications.? This makes consistent results and if not contaminated, helps prevent "zinc pest."? Many model railroaders are aware of this where, over time, a "Zamak" casting (which might not be from the most reputable alloy source) can crack, crumble, warp, or swell with age.? I haven't heard of this problem with Unimats so they were probably careful where their alloy came from.? (Although it is possible it has happened on bases or accessory parts somewhere and I'm just not aware.)
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 07:10:27 AM PDT, Andrei <calciu1@...> wrote:
Zamak has 5 incarnations that I am aware of. They all contain roughly 3-4% aluminum, 1% Copper, traces of Iron and Magnezium and the rest is Zinc.?
If you need Zamak for playing with, find some broken down Cuisinart stand mixers. Their entire body is made of Zamak 5. It melts at about 725F so you can smelt it easily at home.?
Just to be a bit pedantic, Zamac (and similar) are zinc alloys, not aluminum although there is some.? Roughly 96% zinc, most of the rest aluminum, and a smattering of magnesium and copper.
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 06:35:01 AM PDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Being pedantic again, magnesium is generally considered a sufficient percentage (although low) to be considered one of the primary alloy elements of Zamak (zinc, alumininm, copper, magnesium).? Iron is not generally considered one and is instead viewed as a trace as is silicon, lead, cadmium, tin, and nickel.
Zamak (or Zamac - both names are used but Zamak is more correct) is just a quality version of pot metal.? Pot metal being a zinc allow with often random and uncontrolled amounts of other things thrown in. Zamak alloys have consistent specifications.? This makes consistent results and if not contaminated, helps prevent "zinc pest."? Many model railroaders are aware of this where, over time, a "Zamak" casting (which might not be from the most reputable alloy source) can crack, crumble, warp, or swell with age.? I haven't heard of this problem with Unimats so they were probably careful where their alloy came from.? (Although it is possible it has happened on bases or accessory parts somewhere and I'm just not aware.)
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 07:10:27 AM PDT, Andrei <calciu1@...> wrote:
Zamak has 5 incarnations that I am aware of. They all contain roughly 3-4% aluminum, 1% Copper, traces of Iron and Magnezium and the rest is Zinc.?
If you need Zamak for playing with, find some broken down Cuisinart stand mixers. Their entire body is made of Zamak 5. It melts at about 725F so you can smelt it easily at home.?
Just to be a bit pedantic, Zamac (and similar) are zinc alloys, not aluminum although there is some.? Roughly 96% zinc, most of the rest aluminum, and a smattering of magnesium and copper.
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 06:35:01 AM PDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Zamak has 5 incarnations that I am aware of. They all contain roughly 3-4% aluminum, 1% Copper, traces of Iron and Magnezium and the rest is Zinc.?
If you need Zamak for playing with, find some broken down Cuisinart stand mixers. Their entire body is made of Zamak 5. It melts at about 725F so you can smelt it easily at home.?
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Just to be a bit pedantic, Zamac (and similar) are zinc alloys, not aluminum although there is some.? Roughly 96% zinc, most of the rest aluminum, and a smattering of magnesium and copper.
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 06:35:01 AM PDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Just to be a bit pedantic, Zamac (and similar) are zinc alloys, not aluminum although there is some.? Roughly 96% zinc, most of the rest aluminum, and a smattering of magnesium and copper.
Charles E. "Chuck" Kinzer
On Friday, May 24, 2024 at 06:35:01 AM PDT, OldToolmaker via groups.io <old_toolmaker@...> wrote:
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: refurbishing a Unimat?
Joel,
A DB200 is made of cast iron.
An SL is made of Zamac (a form of cast aluminum). Both are good machines although I prefer the cast iron DB200 because of its weight.
Dick
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Re: Chuck coming unscrewed
I thought about that too, but then you'd need to run the spindle in the other direction.? Do any of the the stock motors have that capability?? (I realize it's trivial for folks with DC drives to do this)
-Dave
On Wednesday, May 22, 2024 at 08:14:15 PM PDT, Keith S. Angus <keithsangus@...> wrote:
You need a left handed milling cutter. I didn't know they existed, but I found this fairly quickly:
I don't know how easy it would be for you to get them, or how suitable they might be. They all look a bit long and skinny to me. And would you then have the problem of the cutter/holder unscrewing?
If you are cutting brass you could make your own cutter from silver steel (drill rod), but that depends on the sort of cutter you need.
An alternative would be to add an extra locking device to the chuck, perhaps locating in one of the tommy bar holes - if there is some where convenient to anchor to on the rotary table.
Without knowing just what you are trying to do it's difficult to know what to suggest. Can you post pictures or drawings?
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Re: Chuck coming unscrewed
You need a left handed milling cutter. I didn't know they existed, but I found this fairly quickly:
I don't know how easy it would be for you to get them, or how suitable they might be. They all look a bit long and skinny to me. And would you then have the problem of the cutter/holder unscrewing?
If you are cutting brass you could make your own cutter from silver steel (drill rod), but that depends on the sort of cutter you need.
An alternative would be to add an extra locking device to the chuck, perhaps locating in one of the tommy bar holes - if there is some where convenient to anchor to on the rotary table.
Without knowing just what you are trying to do it's difficult to know what to suggest. Can you post pictures or drawings?
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Re: Chuck coming unscrewed
Dave, I had similar issues with my screw on chucks. One thing I did to counter that was to eliminate the threaded mount. I then converted to using 8mm watchmaker mounts. Watch maker collets utilize a keyway that prevents rotation. This is not difficult to implement but requires careful machining. Now I make all my own.
On Wednesday, May 22, 2024, 8:21 PM, David James via groups.io <davebjames@...> wrote: I want to leave the work piece mounted in the chuck then mount the chuck on the milling table/ rotary table to do some milling on the work before returning it to the lathe.?
Unfortunately the work will unscrew due to the rotation direction/force of the cutter. Has anyone come up with a solution for this. I want to leave the work mounted in the chuck. Any suggestions would be appreciated
Dave
Borneo
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I want to leave the work piece mounted in the chuck then mount the chuck on the milling table/ rotary table to do some milling on the work before returning it to the lathe.?
Unfortunately the work will unscrew due to the rotation direction/force of the cutter. Has anyone come up with a solution for this. I want to leave the work mounted in the chuck. Any suggestions would be appreciated
Dave
Borneo
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Re: Very Quiet on Unimat Group
Cutting grass, pulling weeds…
?
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From: [email protected] < [email protected]> On Behalf Of
paul b via groups.io
Sent: Wednesday, May 22, 2024 12:58 PM
To: [email protected]
Subject: Re: [Unimat] Very Quiet on Unimat Group
?
Busy here! Making small parts for small locos. Maybe others are making stuff rather than posting.
On Wednesday, 22 May 2024 at 13:06:07 BST, OldToolmaker via groups.io <old_toolmaker@...>
wrote:
Not much interest on the Unimat Users group I have noticed. Must be the time of year!
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John Entwistle
Bill in OKC too
OldToolmaker
David James